Opposite of maximum (7)
I believe the answer is:
minimum
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">opposite of maximum</span>' is the definition.<br/ ><span class="explanation-format__explanation">('minimum' is the opposite to 'maximum')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for minimum that I've seen before include "Lowest value" , "Smallest possible quantity" , "The least of smallest amount possible" , "Bottom" , "Nadir" .)